var circleFun = function(r){
    return{
        "circumference": function circumference(){
            var circumference1 = Math.PI * 2 * r;
            return circumference1;
        },
        "area": function area(){
            var area1 = Math.PI * r * r;
            return area1;
        }
    }
}
var circumference = circleFun(3).circumference();
var area = circleFun(3).area();
console.log({"circumference": circumference, "area": area});

module.exports = circleFun;